CenturyLink vs Xfinity: Which Is Better in 2026?

Our database lists Xfinity plans up to 2 Gbps download, but we do not currently track plan-level speeds for CenturyLink in our plan database, so we cannot call a speed winner from our data alone. Xfinity: 2 Gig service is available only at qualifying addresses.

Sometimes — provider footprints overlap in many markets but coverage is decided block by block, and our plan records are provider-level, not an address-level serviceability check. Enter your ZIP code on Konecteaze or run each provider's address checker to confirm which one (or both) actually serves your home.

Order the new service first and confirm an installation date before cancelling the old one, so you are never offline. On installation day, verify speeds, then cancel the old plan, return any rented equipment to avoid fees, and check your final bill for proration. If you are under contract, ask about early-termination charges before scheduling.

Displayed plan records originate in the Konecteaze provider database and are checked against current provider sources where terms change. We currently track 4 Xfinity plans. Unsupported prices and speeds are withheld rather than estimated; confirm current offers at your address.

CenturyLink's network is a mix — some addresses still run on its older DSL (copper) lines, while others can get CenturyLink Fiber, which CenturyLink lists only in limited areas. Quantum Fiber is now a separate brand sold by AT&T, so a Quantum Fiber quote is not a CenturyLink plan. Xfinity is a cable network nationwide, sharing bandwidth on the line and typically delivering much faster downloads than uploads. Confirm which company and technology serve your address, then compare each available plan's quoted download and upload speeds, fees and contract terms with Xfinity's.

Both have generally moved toward no-annual-contract, month-to-month pricing in most markets, though promotional rates on either can step up after an introductory period and terms vary by address. Confirm the current contract length and how long your quoted price is locked in before signing up with either.

If CenturyLink Fiber reaches your address, a fiber connection is usually the stronger pick for uploading, video calls, and remote work. If only CenturyLink's older DSL service is available at your address, Xfinity's cable network will generally outperform it on speed. Compare the quoted speeds of the plan each provider actually offers at your address, and do not substitute a Quantum Fiber from AT&T offer for a CenturyLink one.

The only reliable way is to run CenturyLink's address check and confirm the technology and speed shown in the quote, since fiber and DSL availability are decided block by block. Where CenturyLink's parent company sold its consumer fiber business to AT&T, that fiber service is now sold as Quantum Fiber from AT&T rather than under the CenturyLink name, so check the provider name on a fiber quote too. Don't assume based on a neighboring address; confirm the specific technology quoted for your address before comparing plans against Xfinity.

Yes. Comcast is the company, and Xfinity is the consumer brand it sells home internet under, so CenturyLink vs Comcast is the same head-to-head as CenturyLink vs Xfinity. The service you would order on that side is sold as Xfinity, which is why this page uses that name. Everything here about Xfinity's network and terms applies whichever name you searched for.

It depends on which CenturyLink service your address can actually get, and the table above cannot tell you that on its own. The Fastest download and Fastest upload rows show the quickest tier in our records for each provider, not the tier offered at your home. That gap matters for CenturyLink in particular, because it sells a fiber service in limited areas and an older copper-based service under the same name. So ask CenturyLink to name the service it would install at your address first. Then compare that exact tier with the Xfinity tier quoted for the same address, including upload speed if anyone at home works or games online, rather than against whatever the top row shows.